Welsh ferns, clubmosses, quillworts, and horsetails :
Hyde Harold Augustus
Welsh ferns, clubmosses, quillworts, and horsetails : a descriptive handbook/ H. A. Hyde and A. E. Wade. - 5th ed., rev., expanded, and rearranged - Cardiff : National Museum of Wales, 1969. - xii, 178 p., 14 p. of plates : ill. ; 23 cm.
Includes bibliographical references (p. 164-166) and index.
Ferns--Wales
Pteridophyta--Wales
QK527
587.09429
Welsh ferns, clubmosses, quillworts, and horsetails : a descriptive handbook/ H. A. Hyde and A. E. Wade. - 5th ed., rev., expanded, and rearranged - Cardiff : National Museum of Wales, 1969. - xii, 178 p., 14 p. of plates : ill. ; 23 cm.
Includes bibliographical references (p. 164-166) and index.
Ferns--Wales
Pteridophyta--Wales
QK527
587.09429